Dr. Peter A. Klock Jr., MD
- Medicare services, 2021
- 11
- Medicare patients, 2024
- 41
- Hospital affiliations
- 1
- Industry payments
- $243
- Medical group
- 1
- Practice address
- 5841 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The University of Chicago Medical Center
Chicago, Illinois
Find Dr. Klock's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Peter A. Klock Jr. is an anesthesiologist in Chicago, Illinois
Dr. Klock practices at The University of Chicago Medical Center in Chicago, Illinois.
Dr. Klock's NPI, 1881759009, was assigned on December 27, 2006. Dr. Klock graduated from University of Connecticut School of Medicine in 1990.
- NPI
- 1881759009NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042221756
- NPI enumeration date
- December 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter A. Klock Jr. practices at The University of Chicago Medical Center in Chicago, Illinois
Dr. Klock's primary practice is The University of Chicago Medical Center, at 5841 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- The University of Chicago Medical Center5841 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter A. Klock Jr. is affiliated with 3 sites of care and 1 medical group
Dr. Klock's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dr. Klock is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians (University of Chicago Physicians Group). Dmand AI also links Dr. Klock to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter A. Klock Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klock practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Chicago Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter A. Klock Jr. is one of 1,887 anesthesiologists in Illinois
Anesthesiology is Dr. Klock's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Klock has a license on file in Illinois.
Specialties and state licenses
- Anesthesiology, Illinois
Anesthesiologists near Dr. Klock
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Peter A. Klock Jr. billed Medicare for 11 services in 2021
CMS data shows 11 Medicare services from Dr. Klock across 1 procedure code in 2021, all of them office visits, for 41 Medicare patients. Medicare paid $875 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Klock's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 432021: 1174%
- Anesthesia
- 2020: 162021: 0100%
- Surgery
- 2020: 132021: 0100%
Dr. Klock compared with the Illinois median for anesthesiologists, 2021
- Dr. Klock
- Illinois median
- Medicare services
- 11vs 9188% below
- Medicare patients
- 41vs 15774% below
Medians across 1,742 anesthesiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Klock's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Klock?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klock and other anesthesiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter A. Klock Jr. treated 41 Medicare patients in 2024, average age 70
CMS counts 41 Medicare patients who saw Dr. Klock in 2024. The largest group is 65 to 74, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Klock's median patient age at 64, with 59% women.
Dr. Klock's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Klock's Medicare patients by sex, 2024
- Women2151%
- Men2049%
Chronic conditions among Dr. Klock's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes39%
- Mood disorders39%
- Anxiety37%
- Depression37%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Peter A. Klock Jr. takes part in Medicare
Dr. Klock accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Peter A. Klock Jr. received $243 in industry payments from 2016 to 2023
CMS Open Payments shows 4 general payments to Dr. Klock from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 94% of the total. Fisher & Paykel Healthcare Limited paid the most, $158.
General payments to Dr. Klock by program year, 2016 to 2023
General payments to Dr. Klock by kind, 2016 to 2023
- Food and beverage$22794%
- Education$166%
Companies that paid Dr. Klock the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter A. Klock Jr. graduated from University of Connecticut School of Medicine
Dr. Klock graduated from University of Connecticut School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter A. Klock Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Peter A. Klock Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Peter A. Klock Jr.'s NPI number?
Dr. Peter A. Klock Jr.'s NPI number is 1881759009. It was assigned on December 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter A. Klock Jr.?
Dr. Peter A. Klock Jr. is an anesthesiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Peter A. Klock Jr. practice?
Dr. Klock practices at 5841 S Maryland Ave, Chicago, IL 60637. Dr. Klock's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dmand AI also links Dr. Klock to 1 group practice or clinic.
What is Dr. Peter A. Klock Jr.'s office phone number?
The practice phone on file for Dr. Klock is (773) 702-1530.
Which hospitals is Dr. Peter A. Klock Jr. affiliated with?
Dr. Klock is affiliated with University of Chicago Medical Center.
What medical group is Dr. Peter A. Klock Jr. part of?
Dr. Klock is linked to UChicago Medicine Physicians (University of Chicago Physicians Group).
Does Dr. Peter A. Klock Jr. accept Medicare?
Yes. CMS data shows Dr. Klock billed Medicare for 11 services in 2021, and Dr. Klock accepts Medicare assignment.
How many Medicare patients does Dr. Peter A. Klock Jr. see?
CMS counts 41 Medicare patients who saw Dr. Klock in 2024, with an average age of 70.
What services does Dr. Peter A. Klock Jr. bill to Medicare?
In 2021, Dr. Klock's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Peter A. Klock Jr. go to medical school?
Dr. Klock graduated from University of Connecticut School of Medicine in 1990.
Has Dr. Peter A. Klock Jr. received payments from drug or device companies?
CMS Open Payments shows $243 in general payments to Dr. Klock from 4 companies from 2016 to 2023. The largest total came from Fisher & Paykel Healthcare Limited.
How long has Dr. Peter A. Klock Jr. been practicing?
Dr. Klock graduated from medical school in 1990, 36 years ago.
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